[Sep 27, 2026 (Sun)] NPB Japanese Baseball Analysis Fighters @ Marines Preview - BeaverStats

This is an NPB analysis post written by AI.

Quick preview of Fighters @ Marines (Sep 27, 2026 (Sun)).

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09/27 Fighters vs Marines

Fighters starting pitcher: Arihara Kohei Marines starting pitcher: Takano Shuta

This is the first game of a two-game set (1 of 2). The 3rd-place Fighters (.555) snapped a two-game skid against the Eagles by beating the Buffaloes 2-0, while the 5th-place Marines (.454) lost 5-4 to the Lions. The Fighters lead the season series 13-9.

Arihara Kohei has a 4.35 ERA with a 3.72 FIP, and a 66.3% LOB% suggests poor strand luck made his results worse than his process. The worry is his recent form. Over his last five starts (27 innings) he has a 4.48 FIP, a .333 opponent average and a 1.59 WHIP, and his SwStr% (7.6%) and CSW% (20.7%) are down from his season marks (9.9%/25.1%). His average velocity has also slipped from 147.5 km/h in late August to 145.7 in his last start, a 4-inning, 7-run outing against the Buffaloes on 9/20. A .359 BABIP may include some bad luck, but the drop in swing-and-miss is real. On the road, where he pitches today, he has a 5.03 ERA and 3.82 FIP over 39.1 innings.

Takano Shuta has a 3.00 ERA and 3.81 FIP over 57 innings. What stands out is his stuff: a 13.4% SwStr% and 31.5% CSW% on the season, improving to 14.3% SwStr% and 21.1% K-BB% over his last five starts (28 innings). His average velocity has risen from 142.5 km/h in mid-August to 144.5 recently. That said, his LOB% over the last five is an extreme 98%, allowing just six runs despite four homers, so it is worth watching whether that holds. At home, where he pitches today, he has been even better (2.55 ERA, 3.71 FIP, 15.4% SwStr% over 35.1 innings). A couple of his recent outings ended after three or four innings, so length is a question.

On head-to-head history, Arihara's numbers are more meaningful. He has a 2.25 ERA in three starts (20 innings) against the Marines, including a nine-inning shutout on 8/2, and his last two meetings were solid (2 earned runs in 5 innings, 3 in 6). Takano's four appearances against the Fighters were all short one- or two-inning outings (4.2 innings total, two homers allowed), so they say little about a start.

Neither lineup is confirmed yet, so these are based on each team's previous game. The Marines' offense is ice cold, with a last-five team wOBA of .243, far below their season .311. Fujiwara Kyota (.159 wOBA over the last five) and Satoh Toshiya (.108) are struggling badly. Still, Yamaguchi Koki, who has 32 homers (157.7 wRC+), is 5-for-9 against Arihara. The Fighters' last-five team wOBA is .318, in line with their season .321. Mizutani Shun (.550) and Yazawa Kota (.611) are hot, and Kiyomiya Kotaro, who has 23 homers, has two homers in the last five games, while Arizono Naoki (.106) and Ohtsuka Ruan (.068) have cooled off. Their numbers against Takano are only one or two at-bats each and mean nothing.

The Fighters have the better bullpen, with a 3.55 ERA over the last 10 games against 5.23 for the Marines. The Marines' pen has been used less recently (5.7 innings by 4 pitchers versus 9.7 innings by 10), so it is fresher. At ZOZO Marine Stadium there is a 55% chance of rain, which could affect the game, while the wind is light at 1.1 m/s.

In summary, the starting pitchers are heading in opposite directions, with Takano's stuff improving and Arihara struggling lately, while the Fighters hold the edge in offense and bullpen. The biggest swing factor is how Arihara, whose velocity and swing-and-miss have both dropped, handles Yamaguchi, the one Marines hitter in a cold lineup who has hit him hard.